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Durable Square Nuts | Four-Sided Nuts from China Suppliers | Quality Factory Manufacturing
Product Overview
| Product Name | Square Nut / Four-Sided Nut |
| Standards | DIN 557, DIN 562, ASME B18.2.2, or customized |
| Material | Carbon Steel, Stainless Steel (SS304, SS316), Brass |
| Grade | 4, 6, 8, 10 / A2-70, A4-80 |
| Thread Type | Metric / UNC / UNF / BSW |
| Surface Finish | Zinc Plated (Clear / Yellow / Blue), Black Oxide, Hot-Dip Galvanized (HDG), Plain / Polished |
| Size Range | Metric: M4 – M24 Inch: 1/4" – 1" Custom sizes available upon request |
Product Features
Four-sided shape provides greater grip with tools and easy handling
Larger surface area improves resistance to loosening
Ideal for applications with tight clearances
Can be used in channel or square-shaped recesses
Suitable for both light-duty and heavy-duty fastening applications
Cost-effective and widely compatible
Applications
Furniture assembly
Metal structure fastening
Railings, brackets, and mounting systems
Agricultural and mechanical equipment
Vintage or restoration hardware
Wood and metal construction
Packaging & Delivery
| Packaging |
Bulk in cartons and wooden pallets Small boxes or polybags with labels Custom packaging available upon request |
| Lead Time | 7–30 days depending on quantity and custom orders |
| Shipping Port | Tianjin, China |
Why Choose Hebei Chudu
- Professional manufacturer with over 10 years of experience in the fastener industry.
- ISO 9001 certified with full quality control and inspection systems.
- Wide range of sizes and finishes to meet global standards.
- OEM and ODM services available.
- Fast response, stable supply, and efficient export logistics.
- Trusted by customers in over 40 countries.
Frequently Asked Questions
What are the main manufacturing standards for your square nuts?
Our square nuts (four-sided nuts) are manufactured according to global standards including DIN 557, DIN 562, and ASME B18.2.2. Custom dimensions and standards can also be designed and manufactured upon request.
What materials and grades do you offer for these nuts?
We supply square nuts in Carbon Steel (Grades 4, 6, 8, 10), Stainless Steel (SS304, SS316, Grades A2-70, A4-80), and Brass to suit different environmental and strength requirements.
What surface finishes are available for corrosion protection?
We provide a variety of surface treatments including Zinc Plated (Clear, Yellow, or Blue), Black Oxide, Hot-Dip Galvanized (HDG), and Plain or Polished finishes for stainless steel and brass options.
What size ranges are available for purchase?
We offer Metric sizes from M4 to M24 and Inch sizes from 1/4" to 1". Special customized sizes are also available according to your engineering drawings or specific requirements.
What is your typical lead time and shipping port?
Our standard lead time ranges between 7 to 30 days, depending on the order quantity and customization requirements. All goods are securely packaged and shipped from the Port of Tianjin, China.